Hi everyone, I'm having trouble with the StereoHead and PanGirl exercises. It seems like there's no difference in aperture or panning between the different samples. I've tried it with headphones and speakers, but it's almost impossible for me to finish the exercises because sometimes between two samples I hear exactly the same thing, even though the two responses are completely opposite. I thought maybe I'm just not very good at it, but I do well on all the other exercises, so I find this strange. Do you ever experience the same thing?